FEDORA-2019-4954d8773c created by churchyard 2 months ago for Fedora 30
stable

This is a beta preview of Python 3.8

Python 3.8 is still in development. This release, 3.8.0b4 is the last of four planned beta release previews. Beta release previews are intended to give the wider community the opportunity to test new features and bug fixes and to prepare their projects to support the new feature release.

Call to action

We strongly encourage maintainers of third-party Python projects to test with 3.8 during the beta phase and report issues found to the Python bug tracker as soon as possible. While the release is planned to be feature complete entering the beta phase, it is possible that features may be modified or, in rare cases, deleted up until the start of the release candidate phase (2019-09-30). Our goal is have no ABI changes after beta 3 and no code changes after 3.8.0rc1, the release candidate. To achieve that, it will be extremely important to get as much exposure for 3.8 as possible during the beta phase.

Please keep in mind that this is a preview release and its use is not recommended for production environments.

Major new features of the 3.8 series, compared to 3.7

Some of the new major new features and changes in Python 3.8 are:

  • PEP 572, Assignment expressions
  • PEP 570, Positional-only arguments
  • PEP 587, Python Initialization Configuration (improved embedding)
  • PEP 590, Vectorcall: a fast calling protocol for CPython
  • PEP 578, Runtime audit hooks
  • PEP 574, Pickle protocol 5 with out-of-band data
  • Typing-related: PEP 591 (Final qualifier), PEP 586 (Literal types), and PEP 589 (TypedDict)
  • Parallel filesystem cache for compiled bytecode
  • Debug builds share ABI as release builds
  • f-strings support a handy = specifier for debugging
  • continue is now legal in finally: blocks
  • on Windows, the default asyncio event loop is now ProactorEventLoop
  • on macOS, the spawn start method is now used by default in multiprocessing
  • multiprocessing can now use shared memory segments to avoid pickling costs between processes
  • typed_ast is merged back to CPython
  • LOAD_GLOBAL is now 40% faster
  • pickle now uses Protocol 4 by default, improving performance

There are many other interesting changes, please consult the "What's New" page in the documentation for a full list.

The next pre-release of Python 3.8 and the first release candidate will be 3.8.0rc1, currently scheduled for 2019-09-30.

More resources

How to install

sudo dnf upgrade --advisory=FEDORA-2019-4954d8773c
This update has been submitted for testing by churchyard. 2 months ago
This update's test gating status has been changed to 'waiting'. 2 months ago
This update's test gating status has been changed to 'ignored'. 2 months ago
This update has been pushed to testing. 2 months ago
churchyard edited this update. 2 months ago
churchyard edited this update. 2 months ago
This update can be pushed to stable now if the maintainer wishes 2 months ago
This update has been submitted for stable by bodhi. 2 months ago
This update has been pushed to stable. 2 months ago

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Metadata
Type
security
Severity
medium
Karma
0
Signed
Content Type
RPM
Test Gating
Settings
Unstable by Karma
-1
Stable by Karma
1
Stable by Time
7 days
Dates
submitted
2 months ago
in testing
2 months ago
in stable
2 months ago
modified
2 months ago
BZ#1749839 CVE-2019-16056 python: email.utils.parseaddr wrongly parses email addresses
0
0
BZ#1750460 CVE-2019-16056 python38: python: email.utils.parseaddr wrongly parses email addresses [fedora-all]
0
0

Automated Test Results